| 摘要 |
A method for tuning parameter of RF transmission line and a structure thereof for a printed circuit board (PCB) are provided. When the PCB is being laid out, a transmission line and a plurality of copper foils are formed on the PCB in advance, and at least one tune metal, which is welded directly to the transmission line and partial or at least a copper foil, is used to replace a discrete component such as a transistor, a capacitor, or an inductor, which is working in a low frequency. Therefore, the operation of tuning parameter of the RF element on the PCB makes good use of the open stub or short stub effect occurred between the transmission line and the copper foils, so as to modify the characteristic parameter of the RF transmission line.
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